Speaker



FIG. 1 is a top, front, right side perspective view of a speaker, showing our new design;

FIG. 2 is a top, rear, left side perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left-side view thereof;

FIG. 6 is a right-side view thereof;

FIG. 7 is a top view thereof;

FIG. 8 is a bottom view thereof; and,

FIG. 9 is a cross-sectional view thereof, taken along line 9-9 of FIG. 3 . 

CLAIM The ornamental design for a speaker, as shown and described. 